I joined Gold's recently so that I could get more spin in my life :) I've been taking one class a week elsewhere and wanted a cheap way to get more classes in. They have an extensive class schedule, with enough days and times to fit into anyone's schedule. The staff is really friendly and welcoming.
So far, I've only used the spin room. It's on the smaller side, with maybe 30 bikes. The bikes leave a lot to be desired. Some of them are a bit rickety; two of them actually broke during the last class I went to. The teachers are great though! John and Erin S. are the two instructors that I've seen and they're each motivating in their own way.
Since they don't post prices anywhere, here's an overview: $10/month gets you a basic, month-to-month membership that doesn't include classes and you can't go to any other locations. $15/month gets you a 1 year contract membership that includes classes and other locations. $19/month is the no-contract version of the previous membership. There is also a $40 maintenance fee, charged once a year.
For what I need, Gold's is an excellent value and I'm enjoying my membership so far. They do have a ladies only equipment area, which is great, since the meatballs monopolizing the other equipment can be kinda scary.